Last year in Wisconsin there were nearly 20,000 speed-related crashes resulting in 7,957 injuries and 173 fatalities – more than the number of people injured (3,278) and killed (159) in alcohol-related crashes.

State Patrol says it publicly announces enforcement efforts because the goal is voluntary compliance with traffic laws — not to stop or cite motorists.

Aircraft use a timing device known as VASCAR (Visual Average Speed Computer and Recorder) along with highway markings to determine vehicle speeds.